程颐云:“诚则信矣,信则诚矣。”诚实就会有信誉,讲信誉就是诚实,可见“诚”与“信”互通相连。“以诚感人者,人亦诚而应。”“人之所助者,信也。”诚信是经商之魂,商家只有以诚待客,方能赢得顾客盈门。早期以荣成人为主流的北京烤鸭业近200年的兴衰发展史,就是最好的历史见证。提起荣成人在北京所开办的烤鸭行,美食之名享 Cheng Yiyun: “Sincerity is the letter carry, the letter is honest. ” Honesty will have credibility, credibility is honesty, we can see “honesty ” and “letter ” interoperability. “People with sincerity, people should be sincere. ” “People who help, letter also.” Honesty is the soul of business, businesses only sincere hospitality, in order to win the customer surplus door. The history of the rise and fall of Peking roast duck industry, the first of its kind in the early years, is the best historical testimony. Raise the Roast Duck that Rong Cheng set up in Beijing to enjoy